package com.chen.service;

import com.chen.pojo.User;

public interface UserService {
    //管理员登录
    User getAdminByUserName(String username);
    //修改密码
    void updatePassword(User user);
    //老师登录
    User getTeacherByUserName(String username);
    //学生登录
    User getStudentByUserName(String username);
}
